EP 1793643 A2 20070606 - Wireless positioning approach using time delay estimates of multipath components
Title (en)
Wireless positioning approach using time delay estimates of multipath components
Title (de)
Verfahren zur Positionsbestimmung in drahtlosen Netzwerken unter Verwendung von Zeitverzögerungsschätzungen der Mehrwegekomponenten
Title (fr)
Procédé de localisation dans un réseau sans fil à partir d'estimées de retard des composants multivoies
Publication
Application
Priority
- EP 05253443 A 20050603
- JP 2004171819 A 20040609
- JP 2004255916 A 20040902
Abstract (en)
A wireless positioning apparatus comprising: a multipath delay estimator configured to estimate multipath delay components from one or more received signals; a selector configured to select appropriate delay estimates from the estimated multipath delay components according to a predetermined criterion; a storage configured to store a non-line-of sight, NLOS, delay function defining prior information about NLOS delays; a position estimator configured to estimate a position of a mobile station based on the selected delay estimates and the NLOS delay function read out from the storage; and a time-difference-of-arrival, TDOA, data generator configured to create TDOA data from the selected delay estimates; wherein the position estimator is arranged to estimate the position of the mobile station based on the TDOA data, in place of the selected delay estimates, as well as on the NLOS delay function read out from the storage.
IPC 8 full level
H04Q 7/38 (2006.01); H04W 64/00 (2009.01)
CPC (source: EP US)
H04W 64/00 (2013.01 - EP US)
Citation (applicant)
- JP 2001298763 A 20011026 - SONY CORP
- JP 2003194916 A 20030709 - HITACHI LTD
- US 2003125026 A1 20030703 - TSUNEHARA KATSUHIKO [JP], et al
- WO 03056849 A1 20030710 - HUAWEI TECH CO LTD [CN], et al
- R.J. KELLY: "Reducing Geometric Dilution of Precision Using Ridge Regression", IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS, vol. 26, 1 January 1990 (1990-01-01)
- LI CONG ET AL.: "Non-line-of-sight error mitigation in mobile location", INFOCOM 2004, vol. 1, 7 March 2004 (2004-03-07), pages 650 - 659
- YIHONG QI ET AL.: "On geolocation accuracy with prior information in non-line-of-sight environment", VTC 2002-FALL. 2002 IEEE 56, vol. 1, 24 September 2002 (2002-09-24), pages 285 - 288
- Y. QI; H. KOBAYASHI: "Mitigation of non-line-of-sight effects in time-of-arrival positioning", PROC. 35TH ANNUAL CONFERENCE ON INFORMATION SCIENCES AND SYSTEMS, March 2001 (2001-03-01), pages 590 - 2
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
EP 1605725 A1 20051214; EP 1793643 A2 20070606; EP 1793643 A3 20080528; JP 2006023267 A 20060126; US 2005281363 A1 20051222; US 7519136 B2 20090414
DOCDB simple family (application)
EP 05253443 A 20050603; EP 07006026 A 20050603; JP 2004255916 A 20040902; US 14732005 A 20050608